There is gas leaking out of Uranus

The Atmosphere of Uranus Is Literally Leaking Gas Into Space

oor old Uranus just can't seem to catch a break. Something already tipped the planet on its side, so its orbit is perpendicular to those of the other Solar System planets. It probably smells terrible. And now scientists have discovered that the atmosphere of Uranus is leaking out into space.

https://www.sciencealert.com/uranus-atmosphere-is-leaking-gas-into-space